Last time I flew WOW air I was charged 100$ one-way for checked baggage, which entirely kills the deal.

Also, they don't serve anything on board, water is 5$. Better bring your own through security.

Maybe you should have read the baggage allowances before you showed up at the airport with your luggage? Your complete ignorance doesnt detract from the deal at all. I've flown them round trip to 4 destinations and have had 0 issues, but have seen my fair share of idiots show up at the desk with a stupid look on their face because they assumed they were allowed a bunch of luggage on a trans-Atlantic discount flight.

As for the water/food on board, again, read their website. I bring an empty water bottle to fill past security and a snack for the flight. When I land I usually get some Skyr and other things in the airport if Im hungry.

Just as a second anecdote: I flew to Iceland in April on Wow. I had a backpack that fit under the personal item limit (barely) and a small tote bag with a pair of hiking boots in it (and my neck pillow when I wasn't wearing it). They charged me the $60 for the tote bag. I didn't put a lot of effort into hiding the bag or trying to sneak on or anything, I figured I'd have to pay for it. But it's definitely YMMV.

Just as a second anecdote: I flew to Iceland in April on Wow. I had a backpack that fit under the personal item limit (barely) and a small tote bag with a pair of hiking boots in it (and my neck pillow when I wasn't wearing it). They charged me the $60 for the tote bag. I didn't put a lot of effort into hiding the bag or trying to sneak on or anything, I figured I'd have to pay for it. But it's definitely YMMV.

better next time to bring a packable string bag you use like a backpack over your backpack, and when boarding the plane just pack away the bag and wear the neck pillow and hold the two boots in your hands

i traveled europe with wow air for over 2 weeks without paying for checked luggage, using a book bag and string bag as my 2nd and carrying/wearing my extra pillow/hoodie/clothes/shoes in-hand upon boarding. just put it all back in the string and under seat after boarding and left plane carrying both bags